计算机工程与应用 ›› 2007, Vol. 43 ›› Issue (19): 108-110.

• 产品、研发、测试 • 上一篇    下一篇

基于DSP的SDTV/HDTV数字电视信号格式转换卡设计

黄 翔,李德华,金良海,朱美能   

  1. 华中科技大学 人工智能研究所 图像信息处理与智能控制教育部重点实验室,武汉 430074
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-07-01 发布日期:2007-07-01
  • 通讯作者: 黄 翔

Format conversion board design of Standard Digital Television(SDTV) to High Definition Television(HDTV) based on DSP

HUANG Xiang,LI De-hua,JIN Liang-hai,ZHU Mei-neng   

  1. State Key Laboratory for Image Processing and Intelligent Control,Institute of Artificial Intelligence,Huazhong University of Science and Technology,Wuhan 430074,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-07-01 Published:2007-07-01
  • Contact: HUANG Xiang

摘要: 设计了基于DSP的SDTV/HDTV电视信号格式转换卡。运用双线性插值的方法,在DSP上实现对图像实时的放大处理,算法已在ADSP-TS201S开发板上得到验证,效果良好。设计难点在于,数字电视信号的时钟频率很高,要处理的信号量极大,因此采用多DSP并行处理。

Abstract: The circuit board design of SDTV/HDTV format conversion is proposed.Using the method of bilinear interpolation,which has been testified well on ADSP-TS201S EZ-KIT LITE evaluation board,the realization of real-time image enlargement processing based on DSP is accessible.The difficulty of the design is that the clock signal frequency of digital TV is so high that a large amount of information needs to be dealt with in a short period of time,so the method of multi-DSPs parallel processing is employed.